Reducing noise disturbance from the data received on a SR15 or SR70 Receiver Unit
Use the SR Receiver Filtering functionality to minimize the interference from other acoustic systems (sonars and echo sounders) on your own and/or other vessels.
Context
You can apply filters to the data received from a PX TrawlEye or any other active gear monitoring sensor on the sensor list. Each receiver must be able to accept and recognize the data from the gear monitoring sensors. However, sea conditions will vary, sometimes drastically. The acoustic conditions are also changing. It may therefore be useful to adjust the signal reception parameters to "fine tune" the TV80 operation.
Note
The SR Receiver Filtering functions are only available for SR type receiver units:
•  Simrad SR15
•  Simrad SR70
Procedure
1 Select the Operation icon to open the menu.
2 Select SR Receiver Filtering to open the dialog box.
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3 Select and adjust the level of the filters according to the type of sensor.
•  The Interference filter offers four different settings. The default setting of the filter is Weak.
•  The Sensor Filter can be used if you have problems with the reception. It will average the data received from the sensors. After the sensors have been submerged, the receiver requires only three consecutive pings from individual sensors to calculate and display their respective information. However, if you experience problems with the reception, you may try this filter. The Sensor filter offers four different settings. The default setting of the filter is Weak.
•  The Catch filter reduces the jumping between “catch” and “no catch” states. The Catch filter offers four different settings. The default setting of the filter is Weak.
•  The Catch/Bottom Filter is used to restrict the change of state from the catch and bottom contact sensors. This will reduce jitter in the presentation. The default setting of the filter is Weak.
4 Select OK to save the selected settings and close the dialog box.